
CY54FCT138T, CY74FCT138T
1-OF-8 DECODERS
SCCS013B
–
MAY 1994
–
REVISED OCTOBER 2001
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic diagram (positive logic)
E2
E1
E3
A2
A1
A0
O0
1
2
3
6
4
5
15
14
13
12
11
10
9
7
Pin numbers shown are for the D, Q, and SO packages.
O1
O2
O3
O4
O5
O6
O7
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range to ground potential
DC input voltage range
DC output voltage range
DC output current (maximum sink current/pin)
Package thermal impedance,
θ
JA
(see Note 1): Q package
–
0.5 V to 7 V
–
0.5 V to 7 V
–
0.5 V to 7 V
120 mA
90
°
C/W
57
°
C/W
–
65
°
C to 135
°
C
–
65
°
C to 150
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SO package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ambient temperature range with power applied, T
A
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under
“
absolute maximum ratings
”
may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under
“
recommended operating conditions
”
is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .